PROCEDURE
1. |
CHECK NAVIGATION RECEIVER ASSEMBLY |
(a) Check the radio automatic station search function.
(1) Check the radio automatic station search function by activating it.
Result
Result |
Proceed to |
---|---|
Automatic station search function does not stop |
A |
Automatic station search function stops on a station |
B |
B | ![]() |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
|
2. |
CHECK OPTIONAL COMPONENTS |
(a) Check if any optional components that may decrease reception capacity, such as sunshade film or a telephone antenna, are installed.
Result
Result |
Proceed to |
---|---|
Optional components are not installed |
A |
Optional components are installed |
B |
NOTICE:
Do not remove optional components without the permission of the customer.
B | ![]() |
REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE) |
|
3. |
CHECK NAVIGATION RECEIVER ASSEMBLY |
(a) Preparation for check (1) Remove the antenna connector from the navigation receiver assembly. |
|
(b) Check for noise
(1) Turn the ignition switch to ACC with the navigation receiver assembly connector connected.
(2) Turn the radio on and tune into AM mode.
(3) Place a screwdriver, thin wire or other metal object on the navigation receiver assembly antenna jack and check that noise can be heard from the speakers.
OK:
Noise can be heard from the speakers.
NG | ![]() |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
|
4. |
INSPECT NAVIGATION RECEIVER ASSEMBLY |
(a) Disconnect the navigation receiver assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
RA-5 (ANT+) - Body ground |
Ignition switch ACC. Radio switch on and FM or AM selected |
11 to 14 V |
*a |
Component without harness connected (Navigation Receiver Assembly) |
NG | ![]() |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
|
5. |
REPLACE ANTENNA CORD SUB-ASSEMBLY |
(a) Replace the antenna cord sub-assembly and check if radio broadcasts can be
received normally (See page ).
OK:
Radio broadcasts can be received normally.
OK | ![]() |
END |
|
6. |
REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY |
(a) Replace the antenna assembly with assembly and check if radio broadcasts
can be received normally (See page ).
OK:
Radio broadcasts can be received normally.
OK | ![]() |
END |
|
7. |
REPLACE ANTENNA ASSEMBLY WITH HOLDER |
(a) Replace the roof antenna assembly and check if radio broadcasts can be received
normally (See page ).
OK:
Radio broadcasts can be received normally.
OK | ![]() |
END |
NG | ![]() |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
Reporting safety defects for U.S. owners
If you believe that your vehicle has a defect which could cause a crash or could
cause injury or death, you should immediately inform the National Highway Traffic
Safety Administration (NHTSA) in addition to notifying Toyota Motor Sales, U.S.A.,
Inc. (Toll-free: 1-800-331-4331).
If NHTSA rece ...
Lost Communication with ECM / PCM "A" (U0100,U0125,U0126,U0129)
DESCRIPTION
These DTCs are stored when a communication malfunction occurs between ECUs that
perform pre-collision system control.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
U0100
Lost Communication with ECM ...
Automatic High Beam System does not Operate or Operation Indicator does not
Illuminate
DESCRIPTION
The main body ECU (multiplex network body ECU) controls the automatic high beam
system based on signals received from the forward recognition camera.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing the combination meter assembly, always replace it with
...